#include <STC15F2K60S2.H>
void led_disp(unsigned char adder,enable)
{

static unsigned char temp = 0x00;
static unsigned char temp_old = 0xff;	
if(enable)
temp |= 0x01 <<adder;
else
temp &= ~(0x01<<adder);

if(temp !=temp_old)
{
	P0 = ~temp;
	P2 =  P2 & 0X1F |0X80;
	P2 &= 0X1F;
	temp_old = temp;


}
	

}